A "crowdsourced" project in which home computer users were enlisted to help analyze radio signals from space is ending after ...

It's one of the biggest unanswered questions in science: if there's life beyond Earth, why hasn't it contacted us yet? Now, a scientist claims to have the answer – and it suggests aliens are more ...

Technosignatures are theoretical signs of technologically advanced alien civilizations, but so far, none of those civilizations have phoned home. Researchers from the Search for ExtraTerrestrial ...

First contact with extraterrestrial intelligence may be anything but subtle. Researchers argue that our initial signals from alien worlds will likely be loud, dramatic, and indicative of civilizations ...

Sputnik skies to analysis of interstellar visitors, scientists are rethinking how and where to look for physical traces of ...

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London. Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and ...

Language and radio signals may not matter to aliens. Instead, they might be using patterns to leave a biological fingerprint.

If so, why haven’t they said hello? The humble residents of this pale blue dot have been on a quest to find an alien civilisation for more than a century. First, it was the “canals” of Mars. Then ...

New theoretical models have strengthened the case that immense, energy-harvesting structures orbiting their host stars could ...

A major claim in the older media cycle was that NASA removed the book and related materials. Whatever happened during the original wave of reporting, the current reality is clear: NASA now provides an ...

When ET phones home, it could be his last call. Contrary to sci-fi movie depictions, our first contact might not be with a super advanced alien civilization at the height of power. Rather, Ivy League ...